Bullhead · Cottus gobio

Bullhead in the Withyham Stream

Largest measured bullhead: 8.9 cm

The largest bullhead measured in Environment Agency surveys of the Withyham Stream was 8.9 cm, recorded at Forstal Farm downstream of Bridge on 7 August 2014.

Across 36 measured bullhead, the median measured length was 6.4 cm.

Surveyors recorded one individual weight: 0.1 oz (0.004 kg).

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Withyham Stream.

See bullhead records across England →

Most recent observation7 August 2014Forstal Farm downstream of Bridge · 6 fish

Largest measured bullhead: 8.9 cm
Median length: 6.4 cm
Fish measured: 36
Survey locations: 3

Individual EA measurements

Largest measured bullhead

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

Length	Survey date	Survey location	Survey ID
8.9 cm	7 Aug 2014	Forstal Farm downstream of Bridge	142149
8.7 cm	7 Aug 2014	Forstal Farm downstream of Bridge	142149
8.5 cm	25 May 2004	Forstal Farm upstream of Bridge	80119
8.3 cm	25 May 2004	Forstal Farm upstream of Bridge	80119
8 cm	7 Aug 2014	Forstal Farm downstream of Bridge	142149
8 cm	25 May 2004	Forstal Farm upstream of Bridge	80119
7.9 cm	7 Aug 2014	Forstal Farm downstream of Bridge	142149
7.8 cm	7 Aug 2014	Forstal Farm downstream of Bridge	142149
7.8 cm	25 May 2004	Forstal Farm upstream of Bridge	80119
7.8 cm	25 May 2004	Forstal Farm upstream of Bridge	80119

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where bullhead were found

Each point marks a survey location with at least one bullhead record.

Choose a point on the map to see what was recorded there.

Map points are approximate and don’t show fishing access. Check local permissions before visiting.

Place surveyed	First recorded	Last recorded	Visits finding bullhead
Forstal Farm downstream of Bridge	7 Aug 2014	7 Aug 2014	1
Pipingford Manor Estate	24 Jul 2014	24 Jul 2014	1
Forstal Farm upstream of Bridge	12 Sept 2002	25 May 2004	2

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

2002–2014

Survey records by year

Each bar shows how many survey visits recorded bullhead that year.

102

003

104

005

006

007

008

009

010

011

012

013

214

Fish measured by surveyors

Measured length distribution

See how the 36 measured fish were spread across different length ranges.

Smallest: 4.7 cm
Lower quarter: 5.7 cm
Median: 6.4 cm
Upper quarter: 7.8 cm
Largest: 8.9 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

One individual weight was recorded for this fish and river. This is a subset of the measured fish and may not represent the whole population.

Recorded weight: 0.1 oz (0.004 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Withyham Stream

Compare other species with enough survey and measurement data for a detailed page.

Gudgeon Minnow Roach

Before you fish

Good to know

These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.

Learn how RiverFish uses the data →